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w. e. BUSEY, OF GEORGETOWN, DISTRICT OF COLUMBIA.

Letters Patent No. 76.991, dated April 21, 1868.

IMPROVED FERTILIZER.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, W. G. BUSEY, of Georgetown, in the county of Washington, in the District of Columbia, have invented a. new and improved Fertilizer; and I do hereby declare that the following is a. full and exact description thereof.

The-process of making my fertilizer (which shall be known as Buseys Excelsior Guano) is as follows:

Take of soluble superphosphate of lime, that has been made of bones carbonized in iron retorts or other close vessels, and then treated with one-fourth its weight of sulphuric acid, dried, and well pulverized, thirteen hundred pounds, (1,300 pounds;) of No. 1 Peruvian guano, sifted, and finely ground or otherwise pulverized, six hundred (600) pounds; and of muriate of soda, (common salt,) one hundred pounds, (100 pounds.) Mix the guano and salt well together first; then add the above-mentioned superphosphate of lime, and mix all intimately together, and the fertilizer is ready for use. i l I I do not propose to limit myself to the precise specific proportions of the several materials set forth, as the said proportions may, when ilesired,---be changed to some extent.

What I claim as my invention is The fertilizer, formed by'the combination and manner of combination of the several specific materials, substantially as herein set forth.

W. G. BUSEY. Witnesses S. O. BUSEY, G. S. DUNLQP. 

